发明名称 |
Isolation gravel packer |
摘要 |
A method and apparatus for gravel packing a producing formation or zone in a well without inducing fluid movement across the zone being packed during reverse circulation. Packing and reverse circulation are effected without any movement of the tool string from the time packing is initiated. Bypass and dump valves are incorporated in the isolation gravel packer to facilitate movement of the tool string within the well bore before and after packing a zone.
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申请公布号 |
US4295524(A) |
申请公布日期 |
1981.10.20 |
申请号 |
US19790107739 |
申请日期 |
1979.12.27 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
BAKER, EUGENE E.;SZARKA, DAVID D. |
分类号 |
E21B33/124;E21B43/04;(IPC1-7):E21B43/04 |
主分类号 |
E21B33/124 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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